Method of and apparatus for coating and drying tire-bead rings



Oct. 7 1924. 1,511,059

H. F. MARANVILLE METHOD OF AND APPARATUS FOR COATING AND DRYING TIREBEAD RINGS Original Filed July 2 1919 2 Sheets-Shoe. 1

1 wze/azav F It) I 1 Oct. 7 1924. 1,511,059

' H. F. MARANVILLE METHOD OF AND APPARATUS FOR COATING AND DRYING TIREBEAD RINGS Original Filed July 22, 1919 2 Sheets-Sheet 2 Patented Oct.7, 1924.

UNITED STATES PATENT OFFICE.

HARVEY I. WNVIIILE OF AKRON, OHIO, ASSIGNOR TO THE FIRIESTONE TIRE ANDRUBBER COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

LIETEOD OF AND APPARATUSFOR COATING AND DRYTNG TIRE-READ RINGS.

Original application filed July 22, 1919, Serial No. 312,474, Patent No.1,451,169. Divided and this application iiled November 3, 191,9. Serial110. 335,518.

To all whoin it may comm:

Be it known that I, HARVEY F. MARAN-- VILLE, a citizen of the'UnitedStates, resid ing at Akron, in the county of Summit, State of Ohio, haveinvented certainnew and useful'lmprovements in Methods of and Apparatusfor Coating and Drying Tire- Bead Rings, of which the following is aspecification.

This inventionv relates to devices for dipping or coatingtire beads withrubber cement and is intended as an improvement over methods heretoforein use in the coating of the bead. It has been the ractice, prior to myinvention, to dip by han a mass of tire beads in a bath of rubber cementand then place them on racksor pegs to dry. This is a veryawkward andmessy way of coating the beads, is wasteful of the cement and the tacky,stringy cement soon covers the racks, floors and operators. By the machine disclosed herein the operation is per formed quickly and neatlyand the beads are dried with the minimum amount of contact, therebymaking possible easy separation without danger of injury to the beads.The apparatus set forth herein is shown in my prior application, Serial(No. 312,474,

filed July 22, 19-19, of which this application is a division, the saidapplication being directed to a combination bead stapling and coatingapparatus, whereas this application is directed, to the coating andrying of the beads.

An object of the invention is to coat the beads thoroughly, coverin eachortion of its surface, and to dry it e boa s in such manner that aminimum amount of floor space will be required without requiring t ebeads to come in contact with one another to such an extent that theywill adhere too greatly to be separable without injury.

Other objects and advantages will appear as the description proceeds,and changes and modifications may be made without eparting from thespirit of the invention or sacrificing any of its benefits, it beinunderstood that the form of apparatus s own is illustrative of theinvention merely and the details are non-essential.

* vWhile the machine is shown and described as-adapted for the coatin oftire beads, it is obvious that it is ca a le of other uses and isadaptable for 0 or purposes.

In the drawings:

Fig. 1 is a front elevation of the machine.

Fig. 2 is a vertical section at right angles to the plane of Fig. 1, thesection being taken at the side-of the stapling machine.

In the machine shown in my former application, bead strips out to properlengths are circled and the ends placed in contact and a staple orsimilar fastening device is driven through the joint, whereby a ring ofbead material is formed. The ring is then passed over to a dippingapparatus in which it is coated with cement and then to a drying rack.The stapling machine is fully described in the said application and willnot be gone into more fully here than is necessary for an understandingof this apparatus. I

The bead strips as they are received from the bead forming apparatus,and cut to the proper length, are placed in a trough shaped receptacle 1on the frame work 2 of the stapling machine. The head strip is thencircled and the ends brought together and placed on an anvil 3 where thestaplmg operation is performed making the bead strip into a completering A.

Projecting from the machine 2 is a pair of horizontal arms 4 1n theouter ends of which is received a rotating shaft 5 supported in bearings6. The shaft 5 is constantly driven many suitable manner, preferabl fromthe motor which operates the stapling machine, and carries on its outerend a drum 7. p

The stapled beads in ring form are lifted from the anvil, turned(through an angle of 90 and dropped on the rotating drum 7. This drum mabe of any preferred form, that shown being the frustrum of a .eone

placed with the smaller end toward the stapling machine, and providedwith a spiral' groove 8.

Beneath the drum 7 and supported by adusting screw 9, is a tank 10, thebottom whereof may be sloped upwardly to parallel the u or line of thedrum. The tank is ke t ed with rubber cement from a reserframework ofthe bevel pinions 15 which are rotated from The height/0f the tank 10relative to the drum is so adjusted that the lowermost portion of thebead will dip into the cement in the tank, and as the rotation of thedrum carries the bead forward, it dips all portions of the bead surfacein the tank and finally carries the bead out of the cement.

Arranged at one side of the tank is a post or upright 16 on the upperend of which is supported a rotating head 17, which is designed tosupport a plurality of removable arms 18, the construction being suchthat the arms incline upwardly from the center of the head. The outerend of each arm, when the bead is at the proper position, is arranged inclose proximity to the larger or discharge end of the drum 7 and as itrotates in the direction to advance the bead through the trough, thehead is lifted out of the cement and drops off the drum on to the arm.The beads accumulate on the arm 18 in the manner shown in Fig. 1, thedrip being caught by a pan 19 depending from the tank 10 and by a pan 20surrounding the 0st.

en an arm is full, the head 17 is rotated and a new arm brought intoposition to receive the beads. When the arms have been filled and.allowed to drip a short time, th beads are comparatively dry and thearms may be removed from the head and placed in a location where thedrying is completed.

The angle of the arms 18 is such that as the wet beads hang, an edgecontact only is obtained. This is an immense advance. over the riorpractice as it does not permit the bea s to become stuck or mat- 1 tedtogether, an incident of frequent oocurrence in the promiscuous handlingof the beads which has taken place heretofore.

' Furthermore, the drip from the heads is des of the character set allcaught in one place and the bead room presents a neater and moresanitary appearance. i

Alterations and modification may be made in the exact form of thisinvention and it is the intention to cover all forms of the inventionwhich fall within the purview of the appended claims.

I claim: 1. A machine for coating articles of the character set forthcomprising, a tank, a drum located above the tank a spiral groove onsaid drum and means for rotating the 2. machine for coating articles ofthe character set forth comprising, a tank, a frusto conical drum abovethe .tank, means for rotating the drum, a spiral groove about the drum.1

3. A machine for coating and drying artiorth, comprising a tank, meansfor carrying the articles throughthe tank and'rotating them there--m,eans for suspending the bead rin in, and a drying rack having aplurality of inclined arms to which the carrying means discharges.

4. An apparatus for coating and drying rings of bead materialcomprlsing, a tank, a conveyor for dipping a portion of the head in thetank and rotating the bead while in the tank, and a drying rack to whichthe conveyor delivers, said rack comprising an inclined arm on which thebeads are stacked.

5. An apparatus for coating and drying rings of head materialcomprising, a tank, a conveyor for dipping a portion of the head in thetank and for rotating the bead in its travel, and a drying rack to whichthe conveyor delivers, said rack being arranged to maintain said beadswith an edge contact only while drying.

6. An apparatus for coating and drying rings of bead materialcomprising, a tank, a rotating drum located above the tank on which therings are hung, a spiral groove on said drum, and a rack to which saiddrum delivers the rings, said rack comprising a downwardly inclined arm.

rings of head material comprising, a tank, a rotating drum located abovethe tank, on which drum the rings are hung, a spiral groove on saiddrum, and a drying rack to which the drum delivers the rings, comprisinga rotatable head and a plurality of inclined arms on said head.

8. An apparatus for coatin rings of head material comprising, a tank, arotating frusto-conical drum located above the tank, on which drum therings are hung, a spiral groove on said drum, a drying rack to which thedrum delivers the rings, comprising a rotatable head and a pluralityof'inclined arms on said head.

and drying 9. In an apparatus for coating tire beads in ring form, thecombination of a bath, means for suspending the bead rin above the .bathwith the lower portion of t e ring in the bath, means for rotating thering about its axis while in the bath, means for translating the headthrough the bath, and means for gradually lifting the head out of thebath in a plane inclined to the axis of the bead.

10. In an apparatus for coating tire beads in ring form, the combinationof a bath, means for suspending the bead ring above the bath with thelower portion of the ring in the bath, and means for simultaneouslyrotating-the ring about its axis while in the bath, and-translating thebead through the bath in a plane inclined upwardly from the axis of thebead.

11. In an apparatus for coating tire beads in ring form, the combinationof a bath, above the bath with the lower portion of t e ring III 'pending a ring above the bath with the lower.

portion of the ring in the bath, rotating the ring about its axis whilein the bath, and

translating the bead ring through the bath in a direction inclined tothe axis of the bead.

13. The herein described method of coating pre-formed tire beads in ringform which consists in providing a coating bath, suspending a ring abovethe bath with the lower portion of the ring in the bath, rotating thering about its axis while in the bath, transv 'lating the bead ringthrough the bath, and

liftingthe beadring out of the bath in a plane inclined to theaxis ofthe bead.

14. The herein described method of coating pre-formed tire beads in ringform which consists in providing a coating bath, suspending a ring abovethe bath, simultaneously rotating the ring about its axis andtranslating it through the bath and lifting the ring out of the bath.

15. The herein described method of coating pre-formed tire beads in ringform which consists in providing a coating bath, suspending a ring abovethe bath, rotating the ring about its axis, and simultaneouslytranslating it through the bath, and gradually pending articles abovethe tank with thelower portion of the article submerged in the tank, andmeans for translating the articles through the tank in a directionparallel to the axis of the suspending means.

17. In an apparatus for coating tire beads in ring form, the combinationof a bath, means for suspending the bead ring above the bath with thelower portion of the ring in the bath, and means for simultaneouslytranslating the bead through the bath and gradually lifting the bead outof the bath.

18. An apparatus for coating and drying articles, comprising a tank, anda rotary conveyor for carrying the articles through the tank in adirection substantially paral to the axis of the conveyor.

19. An apparatus for coating and drying articles comprising a tank} anda conveyor mounted upon a fixed axis, said conveyor bew ing constructedand arranged to convey articles through the tank in a directionlongitudinally of the axis of the conveyor.

20. In an apparatus for coating tire beads in ring form, the combinationof a bath, and

. rotary conveying means for supporting and carrying the beads throughthe bath with the lower part of the rin in the bath, said conveyor beingfixed agalnst horizontal and vertical displacement.

HARVEY F. MARANVILLE.

